[Paraview] [paraview] using with python, mpi pvserver and scalar opacity (3.7)

[Berk Geveci]

You can apply Process Id Scalars and then color by ProcessId or use
Threshold to extract a piece.

The implementation is in vtkSMOutputPort::InsertExtractPiecesIfNecessary()

-berk

On Tue, Jun 16, 2009 at 3:09 PM, burlen<burlen.loring at gmail.com> wrote:
> I stand corrected. I have heard so many different claims in term so how PV
> treats serial readers, it's hard to keep them all straight.
>
> Where in the ParaView does the automatic domain decomposition and load
> balancing occur?  Is there a way to take a look at the decomposition from
> within PV?
>
> Berk Geveci wrote:
>>
>> This is not correct. The reader is indeed serial. However, ParaView
>> redistributes the data after reading it. So the resulting mesh will be
>> load balanced across processors but there will be an I/O and/or
>> communication overhead.
>>
>> Note that for unstructured meshes, the redistribution is not
>> necessarily based on spatial partitioning. If you want a nicely
>> partitioned and load balanced mesh, use D3.
>>
>> -berk
>>
>> On Fri, Jun 5, 2009 at 11:50 AM, burlen<burlen.loring at gmail.com> wrote:
>>
>>>
>>> Perhaps unrelated but I see you are using the legacy reader. As far as I
>>> know this reader is not parallel and so if you use it while running in
>>> parallel you'll end up with entire data set loaded in all the processes.
>>> Probably not what you had in mind.
>>>
>>> BOUSSOIR Jonathan 167706 wrote:
>>>
>>>>
>>>> Hi all,
>>>>
>>>> I am using Linux and last csv version of Paraview (3.7)
>>>> I have 2 Pyphon script which animate a cylinder either with or without
>>>> scalar opacity.
>>>> When I use "pvserver" on one CPU, both work well.
>>>> If I use "mpirun -np 4 pvserver" to work on four cpu, I saw a color
>>>> problem when I use script with scalar opacity.
>>>> I don't understand why.
>>>>
>>>> I link the scipts in my email.
>>>> Thanks in advance for your kind help.
>>>>
>>>> Regards, Jona
>>>>
>>>>
>>>>
>>>>  ------------------------------------------------------------------------
>>>>
>>>> _______________________________________________
>>>> Powered by www.kitware.com
>>>>
>>>> Visit other Kitware open-source projects at
>>>> http://www.kitware.com/opensource/opensource.html
>>>>
>>>> Please keep messages on-topic and check the ParaView Wiki at:
>>>> http://paraview.org/Wiki/ParaView
>>>>
>>>> Follow this link to subscribe/unsubscribe:
>>>> http://www.paraview.org/mailman/listinfo/paraview
>>>>
>>>
>>> _______________________________________________
>>> Powered by www.kitware.com
>>>
>>> Visit other Kitware open-source projects at
>>> http://www.kitware.com/opensource/opensource.html
>>>
>>> Please keep messages on-topic and check the ParaView Wiki at:
>>> http://paraview.org/Wiki/ParaView
>>>
>>> Follow this link to subscribe/unsubscribe:
>>> http://www.paraview.org/mailman/listinfo/paraview
>>>
>>>
>
>